Title :
General formulas for a 2D leaky-wave antenna
Author :
Tianxia Zhao ; Jackson, D.R. ; Williams, J.T. ; Oliner, A.A.
Author_Institution :
Dept. of Electr. & Comput. Eng., Houston Univ., TX, USA
Abstract :
General closed-form expressions for a 2D leaky-wave antenna (LWA) are obtained, based on a TEN (transverse equivalent network) model. Results for the radiation pattern, the peak field value, the pattern beamwidth, and the pattern bandwidth are obtained. The closed-form expressions are quite accurate for narrow-beam LWA structures. The new expressions explain many of the physical properties of LWA patterns that are observed, such as why narrow-beam scanning down to endfire is possible in the H-plane, but not the E-plane.
Keywords :
antenna radiation patterns; beam steering; equivalent circuits; leaky wave antennas; 2D leaky-wave antenna; TEN model; endfire narrow-beam scanning; narrow-beam LWA structures; pattern bandwidth; pattern beamwidth; peak field value; radiation pattern; transverse equivalent network; Admittance; Bandwidth; Closed-form solution; Dielectrics; Dipole antennas; Equivalent circuits; Leaky wave antennas; Permittivity; Thickness control; Voltage fluctuations;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2003. IEEE
Conference_Location :
Columbus, OH, USA
Print_ISBN :
0-7803-7846-6
DOI :
10.1109/APS.2003.1219435
